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  data: {
    latitude: 36.7495, longitude: 106.043,
    markers: [{
      iconPath: '/images/navi.png', id: 0,
      latitude: 36.7495, longitude: 106.043, width: 50, height: 50
    }]
  },
  markertap: function () {
    wx.openLocation({
      latitude: this.data.latitude, longitude: this.data.longitude,
      name: '海原县', address: '李旺镇'
    })
  }
})